Loose-leaf binder.



R. J. COPELAND & A. E. CHATTERSON.

LOOSE LEAP BINDER. APPLICATION FILED 23.1, 190s. RBNBWBD D110. 8,1909.

Patented Jan. 11, 1910.

FIL-.4

.v ,iniwmlu WITNESSES: di@

lmfmmas:

RJ. COPELAND. F535 A E cHATTERsoN. E7 11%@ FIG,

Aerr

onirica.

ROBERT TAE/IES COPELAND AND ALBERT EDWY CHATTERSON, OF TORONTO, ONTARIO,CANADA.

LOOSE-LEAF BINDER.

Application led April 1, 1908, Serial No. 424,510. Renewed December 8,1909.

To all whom it may concern:

Be it known that we, ROBERT J AMES COPE- LAND and ALBERT EDWYCrnrrTERsoN, both of the city of Toronto, in the county of York, in theProvince of Ontario, Canada, have invented certain new and usefulImprovements in LooseLeaf Binders, of which the following is thespecification.

@ur invention relates to improvements in locks for loose leaf binders,and the object of the invention is to devise a simple, cheap andeffective lock for loose leaf binders, which is not liable to get out oforder and it consists essentially of a socket in the lower member of thebinder, a round post turnably secured in the upper end of the binder andprovided with a key hole at the top and having a ratchet-shaped toothrack, a sleeve fitting over the post and provided with a slot, a pawlheld in the slot, so as to engage with the rack, the parts beingotherwise constructed and arranged in detail as hereinafter moreparticularly explained.

Figure 1, is a perspective view of a binder showing the cover mostlybroken away and in section, exhibiting the position and generalarrangement of our improved lock. Fig. 2, is an enlarged sectionaldetail of the lock and binder. Fig. 3, is a view of portion of a lockshowing the pawl engaging with the rack on the post. Fig. il, is a viewshowing the post turned, so that the pawl is free from engagement withthe rack. Fig. 5, is a detail of the sleeve in which the pawl tits. Fig.G, is a detail of the pawl.

ln the drawings like letters of reference indicate corresponding p'artsin each figure.

A is the upper member' and B the lower member of a loose leaf binder,the major portion of the cover being broken away and only the binderportion being disclosed in the drawing.

A is a depending back plate attached to the upper portion and B the backplate attached to the lower portion, one of which slides inside of theother.

C is a longitudinal plate secured underneath the upper member A andhaving attached thereto the sockets C and posts C2.

D is a longitudinal plate secured to the lower member' B of the binderand provided with the posts and sockets D and D2 which co-act with thesockets C and post C2 respectively.

E is the ordinary spiral spring located in Specification of LettersPatent.

Patentes aan. ii, raie.

Serial No. 532,035.

the sockets and designed to force the top and bottom of the binderapart, such spiral spring being shown in Fig. l.

Thus far the construction is of the ordinary type used in binders ofthis class.

F is a central socket secured in the longitudinal plate D and providedwith a supplemental sleeve F having a T-shaped recess F2, the dependingportion of which eX- tends through the sleeve F.

G is a post having a ratchet-shaped rack G, the inclined portion of eachtooth being lowermost as indicated. The post G has an enlargement G2 atthe upper end, which is provided with a key socket G3 and a anged topG4.

H is a pin, largement G2 and which serves with the flange GL1 to holdthe post securely in the upper member of the binder.

I is astop pin, which depends from the plate C in the path of the pin Has it turns. J is a T-shaped pawl, the upper horizontal portion of whichfits in the upper portion of the recess F2 and the lower end of whichhas an inward turn J.

K is the key, which is provided with the usual web.

L is the escutcheon plate secured to the top of the member A oppositethe post G and provided with the usual slot for a key. The socket G3 isprovided with a recess and shoulders G5 against which the web of the keyabuts when it is turned, so as to turn the post G.

Having now described the principal parts involved in our invention weshall briefly describe its operation and utility. By inserting the key Kinto the top of the post G hereinbefore described and turning the keythe post may be turned around from the position shown in Figs. 2 and 3into the position shown in Fig. a, so that the pawl J passes out fromthe ratchet teeth when the two members of the binder will spring apart.In this position the web of the key will have passed from underneath itsreceiving slot and thereby the key will be held within the escutcheonplate L. When it is desired to contract the binder again the key may begiven a half turn in the reverse direction, so as to bring the rack ofthe post G into engagement with the pawl again or it may be removedbefore the reverse operation takes place as it is not necessary to havethe key which extends through the en` in for the purpose of locking thebinder. The key is actually required for unlocking only. By pressingdown on the member A the teeth of the rack post Gr Will pass the pawl inits descent and such pawl will lock each tooth as it descends, therebyholding the two members of the binder together. It is also pointed outthat the pawl J when. once placed in position is permanently secured inplace and consequently there is no liability of the co-acting partsfailing to operate. lVhat we claim as our invention is:

l. ln a loose leaf binder, the combination with the upper member andlower member and connections, of a lock comprising a socket secured tothe lower member, a supplemental socket located therein provided with aT-shaped recess, a post turnably secured in the upper member andprovided with ratchet teeth, a T-shaped pawl held in a recess in thesupplemental socket and provided with a bent end, and means for turning`the post, so as to release the pawl from the ratchet as and for thepurpose specified.

2. In a loose leaf binder, the combination with the upper member andlower member and connections, of a lock comprising` a socket secured tothe lower member, of a T- shaped recess Jformed therein, a post turnablysecured in the upper member and provided with ratchet teeth and a`shaped pawl held in the recess in the supplemental socket and providedwith a bent end, means for turning` the post, and means for holding thepawl within the recess, as and for the purpose specified.

ROBERT JAMES COPELAND. ALBERT EDVVY CHATTERSON.

`Witnesses B. Born, R. GOBAIN.

